Glue-spreader.



F. G. PERKINS, DECD. G s PERKINS. ExEcuTnIx GLUE SPREADER. APPLICATIONmin MMI. I3. IsIII.

Patented ept. 4, 191i",

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E. G. PERKINS, nEcn.

G. s. PERKINS. ExEcuTIIIx.

. GLUE SPREADER. APPLICATION FILED III/m13, I9II. 3L,%w.v

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F. G. PERKINS, DECD. s. s. Permms. Execumlx. GLUE SPREADER. APPLICATIONman MAR. 13, wn.

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- GLUE SPREADER. APPLICATION FILED MAR. 13. 19:1.

Patenfed Sept. 4, 1917.

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F. G. PERKINS, DEC'U.

G- S. PERKINS. EXECUTRIX.

GLUE SPREADER. APPLICATION FILED mm1. I3. |911.

i o i l Patented Sept. 4,1917.

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Witwe-aseo: v @uw Moz sin se an ernten- FRANK G. PERKINS, DECEASED, LATEOF LANSDALE, PENNSYLVANIA, BY GERTRUDE S. PERKINS, EXECUTRIX, FLANSDALE,

PENNSYLVANIA, ASSIGNOR TO PERKINS GL'UE C0., A CORPORATION OFPENNSYLVANIA.

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Specification ofLetters Patent.

Application led March 13, 1911. Serial No. 614,038.

To all whom t may concern.'

Be it known that FRANK Gr. PERKINS, de-

. ceased, late of Lansdale, borough of Lansdale, State of Pennsylvania,did invent certain new and useful Improvements in Glue- Spreaders, ofwhich the following is a specifcation.

The invention relates to improvements in glue spreaders, andl moreparticularly to glue spreaders which are adapted to apply a vegetableglue such as described in United States applications for Letters Patent,Serial Nos. 460,737 and 460,738, filed November 2, 1908, to both sidesof a strip or sheet or wood simultaneously. Various objects of theinvention are to provide a glue spreader of the class described, whichhas few parts and is easily and cheaply manufactured; one which isespecially eiiicient in construction and operation and one which hasvarious features enabling it to be easily manipulated. Further objects,features and advantages will more clearly appear from the detaileddescription given below, taken in connection with the accompanyingdrawings,which form a part of this specification.

Referring to the drawings, Figure 1 is a front view of the machine, thelower portion of the legs of the frame being cut away. Fig. 2 is asimilar but rear view of the machine. Fig. 3 is a top plan view of themachine. Fig. 4 is an end view of the machine. Fig. 5 is a verticalsection of the machine, taken on the line V-V of Fig. 1. Figs. 6, 7, 8,9 and 10 show the manner in which the glue rolls may be corrugated.

Referring to the various figures, 1 represents a suitable frame, inwhich is j ournaled a lower glue applying roll 2. Situated below theroll 2 and extending the whole length of the same is a lower glue trough3 for applyin glue to the cylindrical surface of roll 2. lue trough 3has an opening in its bottom for withdrawing glue from the trough, thisopening being normally covered by a gate 4, hinged at 5 and providedwith a handle 6 for movingl the gate. Extending up through the bottom ofthe glue trough 3 are two steam pipes 7, which connect with an enlargedsteam pipe or cylinder 8, extending longitudinally in the glue trough 3for the purpose of supplying steam or hot water to heat or keep the.glue warm within the trough 3. At the front side of the machine there isprovided a member 9, the top of which forms a table on which thematerial to be glued may rest when it is being admitted to the machine.The member 9 has one part thereofy forming a substantial extension forthe front side of the glue trough 3 and is pivotally mounted on the mainframe 1 at 10 by means of bolts 11. The member 9 carries on its innerend a scraper 12, adapted to remove the surplus glue from the roll 2, asit revolves. At each end of the machine there is provided a stop 13, onthe main frame 1, and coperating therewith and passing verticallythrough the member 9 at some distance from the point 10 are adjustingset screws 14, provided with looking nuts 15. By adjusting the positionof the set screws 14 within the member 9, the position of the scraper 12in respect to the surface of the glue roll 2 may be adjusted 'as desiredand the downward movement of the scraper 12 toward the glue roll 2 maybe limited to any desired position. Pivotally mounted on the main frame1 and on the shaft 16 is a frame 17. The shaft 16 is above or at oneside of a vertical plane through the axis of roll 2. J ournaled in theframe 17, above the roll 2, is an upper glue applying roll 18. Rigidlyfixed to frame 17 and coperating with the roll 18 are the ends 19 of anupper glue applying trough for the glue'roll 18. The rear side of thistrough 20 is also rigid with the frame 17, and the rear side 20 isprovided with a bulging portion 21, hollowed out as at 22 (see Fig. 3),in which hollowed out portion there is placed a block of wood or othersuitable material, the top surface of which lies flush with the topsurface of the member 20. The front side of the upper glue troughconsists of a member 22, hinged to the ends 19, as by a shaft 23. Thefront side 22 of the upper glue trough also carries a portion formingthe bottom 24 of the glue trough, which, in turn, carries a scraper 25for the .upper glue roll. At the lower portion of theupper glue troughis provided a rod 26, which, together with shaft 23, serves to hold theends 19 of the upper glue trough in position. Extending downwardly fromthe member 22 are lugs 27 at each end of the machine` throughvwhich passset screws 28, coperating with stops 29 upon the end pieces 19. By meansof the set screws 28 and stops 29 the position of the front wafll of theupper glue box may be adjusted as desired, and consequently the movementof the scraper 25 toward the upper glue roll r18 may be limited andadjusted to any desired position.

For the purpose of holding the Scrapers 25 in the adjusted position withrespect to the glue roll 18, there is providedvat each end of themachine a swinging member` 30, swinging about a bent portion 3l as apivot. Bent portions 31 of the arms 30 are, as shown in Figs. 3 and 5,passed into the'front wall 22, inside of the upper `glue trough.

tion. When it is desiredto release the front vmember 22 and the scraper25, it is only necessary to givethe nuts 33 'a slight turning movement,when the arms may be thrown upwardly and swung about their pivots 31,thus releasing the entire front wall 22 and the scraper 25, so that itmay be easily moved backward and away from the roll 18 as far asdesired.

For the purpose of holding the scraper 12 for the lower roll 2 in itsdesired adjusted osition, there are provided arms 34 (see igs 3 and 4),which arms have a bent portion extendinginto the hubs of the lower glueroll. The arms 34 are adapted to engage and be seated within forkedmembers 35 in a similar manner tothat in which the arms 30 'are seatedwithin the forked members formed by the recesses 32 in the member 20.The arms 34-carry at their outer ex-A tremities nuts 36, so that byturning the nuts 36 they will pull against the forked members 35 whichare rigidlysecured to .the upper part of the member 9 and thus force thescraper 12 inwardly and toward the glue roll 2 about its axis at 10. Ifit is desired to release the scraper 12 it is only necessary to give thenuts 36 a slight backward turn, when the arms 34 may beswung outwardlyina horizontal plane, thus entirely freeing the scraper 12 so that it maybe moved away from the glue roll 2 asfar as desired abouti its axis 10.

The particular arrangements of adjusting and locking above described areparticularly advantageous, since they allow of the most quick and easyaccess to all of thesepar'ts of the machines, enabling them to bereadily cleaned, repaired, replaced, etc.

For'the purpose of heating the glue within the upper glue trough, thefront wall 22 -is provided with a hollow portion therein 37,

extending substantially the whole length of the upper trough. Steampipes 38 are provided for supplying steam or hot water to this space 37in order to properly heat the glue in the upper trough. Rigid with thepivoted arm 17 and extending in 'the opposite direction from the shaft16 are arms 39, one at each end of the machine. Also xed, one to eachend of the main frame ofthe machine, as at 41, are rods 40, which extendupwardly and pass through apertures in the arms 39. Above the arms 39'the rods 40 are provided with adjusting nuts 42 carrying handwheels 43,the nuts 42 resting in cup shaped depressions in the ends of the arms39. The length of the arms or rods 40 may be adjusted by insertingspacing members 44 between the nuts 45 on the ends of the rods 40 andthe lugs 41 on the main frame of the machine.

It will therefore be seen that by merely turning the hand wheels 43 thearms 39 will be moved upwardly or downwardly, as desired, thus at thesame time moving the upper glue roll 18 so that the space between it andthe lower glue roll 2 may be adjusted as desired.

In lorder to help force the upper glue roll downwardly toward ,the lowerglue `roll 2,

there is provided a clip 46 extending over the ends 19 at each end ofthe machlne, to each of which clips are bolted rods 47. The

nected at 48 to a lever member 49. One end of the lever member 49 isheld in xed .position by means of a rod 50, secured to the floor or baseof the apparatus. The lever 49 is pivoted to the upper end of the rod 50to form a fulcruin point. At the-outer end of the lever 49 or at the endof its long arm, there is connected an adjustable weight or weights 51.It will therefore be seen that the weights 51, pulling downwardly on thearm 49 and rods 47, which are connected to the ends 19 of the frame 17,tend to force that portion of the frame 17 carrying the upper glue roll18 downwardly and toward the lower glue roll. By adjusting the size andweight of the weights 51 the pressure which the upper glue roll 18exerts downwardly may be adjusted as desired. For driving the apparatusthere is provided a main driving wheel 52, suitablyjournaled to the mainframe. The driving wheel 52 is xed to a shaft 53, whichf carries a gearwheel 54, which, in turn, meshes with a gear wheel 55 secured lto thelower glue roll 2,V

wheel 59, over which passes a sprocket chain;

lower ends of the rods 47 are pivotally conis important that thenecessary manipulations for this purpose be decreased to a minimum.

In order that the glue may be applied properly to the wood or othermaterial when run through the machine between the rolls, the surfaces ofthe glue rolls are corrugated longitudinally and these corrugations maytake the form, as shown in Figs. 6, 7 8,A 9 and 10, according to thequality of the glue and the depth or thickness of glue deslred andcharacter of material operated upon.

As shown in Fig. 6 the corrugations have substantially fiat faces whichengage the material operated upon, and depreions 71 with curved bottomsand sides whereby the sides of the depressions are materially inclinedto one another so that the depressions are without sharp corners andwill more readily fill. If the depressions were rectangular incross-section sharp corners would be formed which would not entirely illwith the glueupon a single revolution of the roll, but would finallyfill upon further revolution of the roll. 'With such a roll when a newpiece of material is started through. the machine the roll will apply afull coating to the material during the rst revolution because thedepressions are practically filled, but on the second, and furtherrevolutions of the roll the depressions only dip once into the glue sothat the sharp corners vdo not become completely filled, andaccordingly, after the first revolution of the Vroll a thinner coatingof glue is applied.

This is disadvantageous because it results in unevenness in thethickness of coating on the same piece of work, which is veryundesirable. The depressions should therefore have such shape that theywill substantially completely fill with a single revolution of' theroll. This may be done by inclining the sides of the depressionssuiliciently so that the glue is easily fed into all parts of thedepressions to readily fill the same. As shown in Figs. 6 to 10 thedepressions are sufficiently close-to one another so that when the glueis deposited upon the material from the depressions it will readilyspread over the blank spaces engaged by the flat faces, as 70, and forma substantially continuous coating of glue on the material. Thecorrugations in Fig. 7 are somewhat smaller than those of Fig. 6, sothat a somewhat thinner coating is applied by this form of roll. InFigs. S and 9 the depressions are made relative-ly deeper and the uppersides of the depressions are parallel to one another or nearly so. Thisform gives a relatively larger fiat biting face for engaging thematerial at the same time providing depressions of suflicient volume toproperly cover the material with glue. Corrugations of this form are,however, less likely to become completely filled with glue with a singlerevolution of the roll, but this disadvantage of non-filling is largely,if not entirely, overcome by curving the bottoms of the depressions sothat they are without sharp corners.

Although the improvements have been described in great detail,nevertheless, it is not desired to limit the invention to such details,except as clearly pointed out in the appended claims, since many changesand modifications may well be made without departing from the spirit andscope of the invention.

However, having fully described the improvements, what is claimed as newand desired to be secured by Letters Patent, is:

l. In a glue spreader, a main frame, a lower glue roll journaled in saidframe, a. glue trough below said roll, a pivoted scraper for said glueroll, a stop and set screw for limiting the downward movement of thescraper toward the roll, said scraper having a forked portion, aswinging arm having its 1 axis in the main frame and arranged to engagesaid forked portion, a nut on said arm arranged to engage said forkedportion to hold the scraper in place, a pivotally mounted frame, anupper glue roll journaled in said last mentioned frame, a glue troughfor the upper roll secured to said last mentioned frame, a pivotallymounted scraper for the upper glue roll, a stop and set screw forlimiting the movement of said last mentioned scraper toward the upperglue roll, a forked portion on said last mentioned frame, an armswinging on said scraper at one end and engaging said forked portion atthe other end, a nut on said arm for holding the arm and upper scraperin position, an arm carried by said pivotally mounted frame, a rodextending from a point on the main frame to said last mentioned arm anda nut on said rod adjacent said arm for moving the arm to raise or lowerthe upper glue roll.

2. In a glue spreader, a main frame, a glue roll journaled in saidframe, a glue trough beneath said roll, a pivotally mounted scraper forsaid roll, a stop and coperating set screw for limiting the movement ofthe scraper toward the roll, a forked member and a swinging arm carryinga nut both cooperating withsaid forked member to hold the scraper towardsaid glue roll.

ISO

'surplus glue from said roll, so as to leave the desired amount of glueon the roll to apply to the material to be glued, means pivotallymounting said scraper on the frame, a screw for adjusting the movementof the scraper edge toward the roll, a stop coperating with said setscrew for positively limiting the movement of the scraper edge towardthe roll, and means, as a nut for moving said scraper edgeV intopositiontoward the roll by a wedge or cam action.

4. In a glue spreader, a frame, a glue roll j ournaled in said frame, aglue trough adj acent said roll for vfeedin glue thereto, a movablescraper for the g ue roll, a forked member, and a swinging arm and anabutment on said arm both co erating with said forked member to hold t escraper toward the lue roll.

5. n a glue spreader, a frame, aglue roll journaled 1n said frame, aglue trough adjacent said roll for feedin movable scraper for the g ueroll, a forked member, a swinging arm and a nut on said arm coperatingwith said forked member.

to hold the scraperA toward the glue roll, said arm being pivotallymounted on the frame and said forked member being on the scraper.

6; In a lue spreader, a frame, a glue roll j ournaled 1n said frame aglue trough adjacent said roll for fee in glue thereto, a movablescraper for the g ue roll, a forked member, a swinging arm and a nut onsaid arm coperating with said forked member to hold the scraper towardthe glue roll, said arm being pivotally mounted on the scraper and saidforked member being on the main frame.

7. In a glue spreader, a frame, a glue roll journaled in sa1d frame, aglue trough for said roll, a pivotally mounted scraper for said roll, astop and coperating set screw for limiting the movement of the scrapertoward the roll, a forked member and a swinging arm carrying a nut bothcoperating with saidforked member to hold the scraper toward said glueroll.

8. In a glue spreader, a main frame, a lower-glue roll journaled in saidframe, a glue trough below said roll for feeding glue thereto, av secondframe pivotally mounted with respect to the first, an upper glue rollvjournaled in the second frame, and a glue trough carried ,by thepivotally mounted frame for feeding the upper glue roll, a scraper forthe lower roll, means for adjusting the position of the scraperwith'respect to the lower roll, said means including a stop andcoperating set Screw for limiting the movement of the scraper toward theglue thereto, a

y roll and means for adjusting `the position of said last mentionedscraper with respect to the upper roll, said last mentioned meansincluding a stop and coperating set screw for limiting the movement ofthe upper scraper toward the upper roll and a swinging arm for holdingthe upper scraper in position toward the upper roll.

9. In a glue spreader, a main lower glue roll journaled in said frame, aglue trough for feeding gluev to said roll, aframe pivotally mounted tosaid main frame, an upper lue roll journaled in said last mentionedrame, a glue trough for said upper roll, the back and bottom of saidlast mentioned trough being pivoted to the ends thereof and the bottomcarrying a scraper for the upper roll, a stop and coperating set screw`for limiting and adjusting the movement of said scraper toward itsroll, and a swinging arm for holding` said' scraper in positiontowardits roll. 1

10. In a glue spreader, a frame, a glue applying roll journaled in saidframe, a

glue trough adjacent said roll-for feeding frame, a v

swinging arm engaging a forked member for holding the scraper inposition.

11. In a glue spreader, a main frame, a lower glue roll journaled insaid frame, a glue trough below said roll for feeding glue thereto, asecond frame pivotally mounted to the first, an upper glue rolljournaled in the second frame, and a glue trough carried by thepivotally mounted framefor feeding the upper glue roll, an arm carriedby the pivoted frame and in .fixed relation thereto, and means operatingupon said arm lto move the second frame about its pivot to adjust theposition of the upper glue roll, said means embracing a rod connectedwith the main frame and a nut coperating with said arm and rod forraising -or lowering the upper glue roll.

12. In a glue spreader, a main frame, a lower glue roll journaled insaid frame, a

`glue trough below said roll for feeding glue thereto, a second framepivotally mounted to the rst, an upper glue roll journaled in thesecondframe, and a glue trough carried by the pivotally mounted framefor feeding the upper glue roll, two arms carried byy the pivoted frameone at each end .of'said frame, and in fixed relation thereto two rodsone at each end of said frame, one end of each rod being secured to themain frame and a nut and hand wheel operating on each rod and coperatingwith said arms to lower or raise the upper glue roll.

13. In a glue spreading machine; upper and lower glue rolls, a scraperfor each roll and a swinging arm and a forked portion on the machine foreach scraper to hold this1 Scrapers in position with respect to said ros.

14. In a glue spreading machine, a glue applying roll, a scraper forsaid roll and a swinging member and a forked portion at each end of themachine, said swinging members engaging said forked portions to hold thescraper in position with respect to said roll. Y

15. In a glue spreader, a main frame, a lower glue roll journaled insaid frame, a glue trough below said roll, a pivoted scraper for saidglue roll, a stop and set screw for limiting the downward 4movement ofthe scraper toward the roll, said scraper having a forked portion, aswinging arm having its aXis in the main frame and arranged to engagesaid forked portion, a nut on said arm arranged to engage said forkedportion to hold the scraper in place, a pivotally mounted frame, anupper glue roll journaled in said last mentioned frame, a glue troughfor theupper roll secured to said last mentioned frame, a pivotallymounted scraper for the upper glue roll, a stop and set screw forlimiting the movement of said last mentioned scraper toward the upperglue roll, a forked portion on said last mentioned frame, an armswinging on said scraper at one end and engaging said forked portion atthe other end, a nut on said arm for holding the arm and upper scraperin position, an arm carried by said pivotally mounted frame, a rodextending from a point on the main frame to said last mentioned arm andanut Von said rod adjacent said arm for moving the arm to raise or lowerthe upper glue roll, a sprocket wheel secured to the upper glue roll fordriving the same, a sprocket wheel having the same aXis as saidpivotally mounted frame, a sprocket chain running over said sprocketwheels, and means for positively driving said second mentioned sprocketwheel and said first mentioned glue roll.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

GERTRUDE S. PERKINS, E meca/fras of Said` Fraaie G. Perkins.

Witnesses:

v L. MOMILLEN,

CEAS. L. ZIGLER.

